Table 2 The incidence of PPCs in the two study groups
Variables | Non-ONN group(n = 432) | ONN group (n = 461) | χ2 | P-value |
|---|---|---|---|---|
PPC | 65(15.0) | 45(9.8) | 5.767 | 0.016 |
pleural effusion | 49(11.3) | 39(8.5) | 2.086 | 0.149 |
atelectasis | 31(7.2) | 28(6.1) | 0.439 | 0.508 |
respiratory infection | 10(2.3) | 5(1.1) | 2.044 | 0.195 |
pneumothorax | 1(0.2) | 4(0.9) | 1.621 | 0.375 |
respiratory failure | 0 | 0 | -- | -- |
bronchospasm | 0 | 0 | -- | -- |
aspiration pneumonitis | 0 | 0 | -- | -- |
Number of PPCs | 6.385 | 0.089 | ||
0 | 367(85.0) | 416(90.2) | ||
1 | 22(5.1) | 17(3.7) | ||
2 | 39(9.0) | 24(5.2) | ||
≥ 3 | 4(0.9) | 4(0.9) |